#include <stdio.h>
#include <string.h>

int main()
{
    char x[255];
    printf("pls enter a secrit: \n");
    //限制输255 防止溢出
    scanf("%255s", &x);
    int n = strlen(x);

    for(int i = 0; i < n; i++)
    {
        if(x[i] == 89 || x[i] == 90 || x[i] == 121 || x[i] == 122)
        {
             x[i] -= 24;
        }
        else
        {
            x[i] += 2;
        }
         
    }
    printf("* = %s\n", x);


    return 0;
}